Hi, everyone Today I upgraded ES and Kibana (5.4 to 6.8) followed the official documents. ES looks well, but Kibana got a error: [123] Kibana log: [456] How can I solve this problem?

Elasticsearch cluster did not respond with license information

jen-huang (Jen Huang) July 2, 2019, 7:03pm 2

What was your Elasticsearch license before upgrading? The troubleshooting steps in this thread may help, namely the last comment: License Expired

Topic		Replies	Views
License for base elasticsearch Elasticsearch	8	1901	July 16, 2019
License information could not be obtained from Elasticsearch for the [data] cluster Kibana	5	15862	February 8, 2020
LICENSE [EXPIRED]? Elasticsearch	2	297	September 1, 2022
License is expired Elasticsearch license	5	519	June 28, 2021
Help needed, Elastic+Kibana Ubuntu 18.04.LTS problem Elasticsearch	5	804	March 1, 2020